CN109690126B - Vibration-proof device - Google Patents
Vibration-proof device Download PDFInfo
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- CN109690126B CN109690126B CN201780054802.2A CN201780054802A CN109690126B CN 109690126 B CN109690126 B CN 109690126B CN 201780054802 A CN201780054802 A CN 201780054802A CN 109690126 B CN109690126 B CN 109690126B
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- China
- Prior art keywords
- mounting member
- guide portion
- vibration
- bracket
- guide
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/3842—Method of assembly, production or treatment; Mounting thereof
- F16F1/3849—Mounting brackets therefor, e.g. stamped steel brackets; Restraining links
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
- F16F13/103—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like characterised by method of assembly, production or treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/18—Mounting of vehicle engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/41—Elastic mounts, e.g. bushings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Connection Of Plates (AREA)
Abstract
The invention provides a vibration damping device body (10) comprising: a 1 st mounting member (11) mounted to one of the vibration generating section and the vibration receiving section via a bracket (2); a 2 nd mounting member (12) mounted to the other of the vibration generating section and the vibration receiving section; and an elastic body (13) that connects the 1 st mounting member (11) and the 2 nd mounting member (12), wherein the 1 st mounting member (11) is fitted in a fitting hole (2a) formed in the bracket (2), wherein a 1 st guide portion (30) is formed on the outer peripheral surface of the 1 st mounting member (11), a 2 nd guide portion (2f) is formed on the inner peripheral surface of the fitting hole (2a), the 1 st guide portion (30) is fitted in the 2 nd guide portion (2f), the 1 st mounting member (11) is formed of a synthetic resin material, a metal fitting (40) is disposed on the 1 st guide portion (30), and the metal fitting (40) has a 1 st engagement surface (42a) that abuts against the 2 nd guide portion (2 f).
Description
Technical Field
The invention relates to a vibration isolation device body and a vibration isolation device. This application claims priority based on Japanese application No. 2016-.
Background
Conventionally, for example, a vibration isolator disclosed in patent document 1 is known, which includes: a bracket mounted on one of the vibration generating section and the vibration receiving section; a mounting member mounted to the other of the vibration generating section and the vibration receiving section; and an elastic body that connects the bracket and the mounting member. Further, there is also known a vibration isolator including: a 1 st mounting member mounted to one of the vibration generating portion and the vibration receiving portion via a bracket; a 2 nd mounting member mounted to the other of the vibration generating portion and the vibration receiving portion; and an elastic body which connects the 1 st mounting member and the 2 nd mounting member, wherein the 1 st mounting member is embedded in the embedding hole formed on the bracket.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2011-214634
Disclosure of Invention
Problems to be solved by the invention
However, in the latter vibration isolator, if the first mounting member 1 is formed of a synthetic resin material in order to reduce the weight, there arises a problem that the rigidity is lowered as compared with, for example, a metal material. As a result, the 1 st mounting member is easily deformed, the fitting strength of the 1 st mounting member into the fitting hole is reduced, and the 1 st mounting member may be easily displaced from the bracket.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a vibration isolator main body and a vibration isolator which can suppress the displacement of the 1 st mounting member with respect to the bracket and can achieve weight reduction.
Means for solving the problems
In order to solve the above problem, the present invention proposes the following. The technical scheme of the invention is that the vibration isolation device main body comprises: a 1 st mounting member mounted to one of the vibration generating portion and the vibration receiving portion via a bracket; a 2 nd mounting member mounted to the other of the vibration generating portion and the vibration receiving portion; and an elastic body which connects the 1 st mounting member and the 2 nd mounting member, wherein the 1 st mounting member is embedded in the embedding hole formed in the bracket, wherein, a 1 st guiding part which is in one form of a convex shape and a concave shape and extends in a 1 st axial direction along the central axis of the embedding hole is formed on the outer circumferential surface of the 1 st mounting member, a 2 nd guiding part which is in the other form of a concave shape and a convex shape and extends in the 1 st axial direction is formed on the inner circumferential surface of the embedding hole, the 1 st guiding part is embedded in the 2 nd guiding part, the 1 st mounting member is formed by synthetic resin material, and a metal fitting which is provided with a 1 st engaging surface abutting against the 2 nd guiding part is arranged on the 1 st guiding part.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, the 1 st mounting member can be prevented from being displaced from the bracket, and the weight can be reduced.
Drawings
Fig. 1 is a longitudinal sectional view of a vibration isolator according to an embodiment of the present invention.
Fig. 2 is a perspective view of the bracket shown in fig. 1.
Fig. 3 is a longitudinal sectional view of a main portion of the bracket shown in fig. 1.
Fig. 4 is a perspective view of the 1 st mounting member shown in fig. 1.
Fig. 5 is a sectional view taken along line a-a of the 1 st mounting member shown in fig. 4.
Detailed Description
Hereinafter, the vibration isolator main body 10 and the vibration isolator 1 according to the present embodiment will be described with reference to the drawings. The vibration damping device 1 of the present embodiment is used, for example, as a suspension bushing for an automobile, an engine mount, or a bracket for an industrial machine installed in a factory. As shown in fig. 1, the vibration isolator 1 includes a bracket 2 attached to any one of a vibration generating portion (e.g., an engine) and a vibration receiving portion (e.g., a vehicle body), and a vibration isolator main body 10 attached to a fitting hole 2a formed in the bracket 2. The vibration isolator main body 10 includes: a 1 st mounting member 11 mounted to one of the vibration generating portion and the vibration receiving portion via a bracket 2; a 2 nd mounting member 12 mounted to the other of the vibration generating portion and the vibration receiving portion; and an elastic body 13 that connects the 1 st mounting member 11 and the 2 nd mounting member 12. The 1 st mounting member 11 is fitted into the fitting hole 2a of the bracket 2.
The 1 st mounting member 11 and the elastic body 13 are respectively formed in a cylindrical shape. The elastic body 13 is disposed coaxially with the center axis O1 of the 1 st mounting member 11. The 2 nd mounting member 12 is disposed apart from the 1 st mounting member 11 toward one side in the direction along the center axis O1. Hereinafter, the direction along the center axis O1 is referred to as the vertical direction Z, the direction perpendicular to the center axis O1 is referred to as the radial direction, and the direction revolving around the center axis O1 is referred to as the circumferential direction in a plan view viewed from the vertical direction Z.
The 1 st mounting member 11 is formed of a synthetic resin material, and is coupled to the elastic body 13. The lower end of the elastic body 13 is connected to the upper end of the 1 st mounting member 11. The elastic body 13 is formed of a rubber material, and is vulcanization-bonded to the 1 st mounting member 11. Further, a flange portion 11a protruding outward in the radial direction is formed at the upper end portion of the 1 st mounting member 11. The upper surface of the flange portion 11a is flush with the upper end opening edge of the 1 st mounting member 11.
The upper end opening in the 1 st mounting member 11 is closed by the elastic body 13, and the lower end opening is closed by the diaphragm 14. The diaphragm 14 is formed of, for example, a rubber material. A liquid chamber 20 in which a liquid such as ethylene glycol or water is sealed is defined by the inner peripheral surface of the first mounting member 11, the inner peripheral surface of the elastic body 13, and the upper surface of the diaphragm 14. A partition member 15 is disposed in the liquid chamber 20, and the partition member 15 partitions the liquid chamber 20 into a main liquid chamber 21 having an elastic body 13 in a part of a partition wall and an auxiliary liquid chamber 22 having a diaphragm 14 in a part of the partition wall. The partition member 15 includes a partition member main body 15a fitted in the 1 st mounting member 11 and formed in a ring shape, and a diaphragm 15b mounted to the partition member main body 15 a. The partition member main body 15a is disposed coaxially with the central axis O1.
The partition member body 15a is formed with a restriction path 15c that communicates the main liquid chamber 21 and the auxiliary liquid chamber 22, and a mounting portion 15d to which an elastically deformable diaphragm 15b is mounted. The restricting passage 15c is formed in the outer peripheral surface of the partition member main body 15a, extending in the circumferential direction. One of the two peripheral ends of the regulating passage 15c is open upward and communicates with the main liquid chamber 21, and the other peripheral end is open radially inward and communicates with the auxiliary liquid chamber 22. The mounting portion 15d protrudes radially inward from the inner peripheral surface of the partition member main body 15a, and extends continuously over the entire circumference. The diaphragm 15b is vulcanization-bonded not only to the mounting portion 15d but also to a portion of the inner peripheral surface of the partition member main body 15a which is located above the mounting portion 15 d.
The diaphragm 14 includes: a main body portion 14a formed in a top cylindrical shape; an annular fixing portion 14b fixed to a later-described fixing ring 17 in the 1 st mounting member 11; and a ring-shaped connecting portion 14c for connecting the main body portion 14a and the fixing portion 14 b. The body portion 14a, the fixing portion 14b, and the connecting portion 14c are arranged coaxially with the central axis O1. The diaphragm 14 has a circular shape in plan view. The top wall portion of the main body portion 14a is formed in a circular shape, and the peripheral wall portion gradually decreases in diameter as it goes upward. The lower end portion of the peripheral wall portion of the main body portion 14a is connected to the radially inner end portion of the connecting portion 14 c.
The connecting portion 14c is bent so as to protrude downward. The radially outer end of the connecting portion 14c is connected to the radially inner end of the fixing portion 14 b. The fixing portion 14b is formed in a circular plate shape. The upper surface of the fixing portion 14b abuts against the lower surface of the partition member main body 15 a. The projecting portion 14f projecting upward extends continuously over the entire circumference of the outer peripheral edge of the fixing portion 14 b. The protruding portion 14f is disposed radially outward of the partition member main body 15 a. The protruding portion 14f is radially sandwiched between the inner peripheral surface of the 1 st mounting member 11 and the outer peripheral surface of the partition member main body 15 a. The fixing ring 17 is formed of a synthetic resin material. The lower surface of the fixing portion 14b abuts on the upper surface of the fixing ring 17. The fixing ring 17 is fitted in the lower end portion of the 1 st mounting member 11.
The 2 nd mounting member 12 is formed in a cylindrical shape with its central axis O2 extending in one of the radial directions (the 1 st axial direction). Hereinafter, the one direction is referred to as a left-right direction X, and a direction orthogonal to both the left-right direction X and the vertical direction Z is referred to as a front-rear direction Y. The vertical direction Z, the horizontal direction X, and the front-rear direction Y described above coincide with each direction of the vehicle to which the vibration isolation device 1 is attached.
The 2 nd mounting member 12 has a rectangular shape when viewed from the left-right direction X. The 2 nd mounting member 12 is formed by bending a strip-shaped metal plate into a rectangular tube shape with the center axis O2 as the center, and both end edges in the longitudinal direction thereof are in contact with or close to each other. A bowl-shaped bulging portion 12b bulging downward is formed in a lower peripheral wall portion 12a facing the vertical direction Z and located below in the peripheral wall portion of the 2 nd mounting member 12. The bulging portion 12b is disposed coaxially with the center axis O1. The inner peripheral surface of the bulging portion 12b gradually expands in diameter as it goes upward.
The 2 nd mounting member 12 is arranged so as to be positioned radially inward of the 1 st mounting member 11, and the entire 2 nd mounting member 12 is buried in the elastic body 13. A plurality of through holes that open in the radial direction are formed in the bulging portion 12b at intervals in the circumferential direction. A coupling plate 18 coupled to the other of the vibration generating portion and the vibration receiving portion is press-fitted into the inside of the 2 nd mounting member 12.
As shown in fig. 2, the bracket 2 is formed with a fitting hole 2a that opens in the left-right direction X. The bracket 2 is formed in a rectangular tube shape that is open in the left-right direction X. In the illustrated example, the bracket 2 has a rectangular shape that is long in the vertical direction Z and short in the front-rear direction Y when viewed from the left-right direction X. The inside of the bracket 2 is formed as a fitting hole 2 a. The bracket 2 is integrally formed of the same material by casting.
The bracket 2 includes: a pair of side walls 2b whose front and back surfaces face in the front-back direction Y; a top wall 2c whose front and back surfaces face in the vertical direction Z and which connects upper ends of the pair of side walls 2b to each other; and a bottom wall 2d having a front and back surface facing in the vertical direction Z and connecting lower ends of the pair of side walls 2b to each other. The bottom wall 2d is formed in a ring shape that opens in the vertical direction Z.
The bracket 2 is formed with a covering portion 2e for covering an opening portion on one side in the left-right direction X of the fitting hole 2 a. In a state where the vibration isolation device 1 is mounted on a vehicle, one side in the left-right direction X is the left side of the vehicle, and the other side in the left-right direction X is the right side of the vehicle. The covering portion 2e connects lower portions of the pair of side walls 2b to each other, and covers a lower portion of the opening portion on one side in the left-right direction X of the fitting hole 2 a.
The covering portion 2e has a curved surface shape protruding toward one side in the left-right direction X, and protrudes from the pair of side walls 2b toward one side in the left-right direction X as shown in fig. 1. The covering portion 2e may not be formed. Here, the 2 nd mounting member 12 is positioned above the covering portion 2e, and the connecting plate 18 described above protrudes from the fitting hole 2a of the bracket 2 to one side in the left-right direction X. Further, the protruding portion of the linking plate 18 that protrudes from the fitting hole 2a of the bracket 2 to one side in the left-right direction X and the end face of the bracket 2 on one side in the left-right direction X face each other in the left-right direction X.
A rubber stopper 13a is provided between the protruding portion of the web 18 and the end face of the bracket 2. Further, the upper end portion of the elastic body 13 closely abuts on the lower surface of the ceiling wall 2c of the bracket 2. The rubber stopper 13a is formed integrally with the elastic body 13.
As shown in fig. 2 and 3, a recessed 2 nd guide portion 2f extending in the left-right direction X is formed on the inner peripheral surface of the fitting hole 2 a. The 2 nd guide portions 2f are formed on the pair of side walls 2b, respectively. The 2 nd guide portion 2f includes a 1 st groove portion 2s located on one side in the left-right direction X and a 2 nd groove portion 2t located on the other side in the left-right direction X. As shown in fig. 3, the 1 st groove portion 2s is formed in a rectangular shape extending in the left-right direction X. The 2 nd groove portion 2t has a rectangular shape that is long in the vertical direction Z and short in the horizontal direction X when viewed from the front-rear direction Y.
The 1 st groove portion 2s is formed smaller than the 2 nd groove portion 2t in a direction along the outer peripheral surface of the 1 st mounting member 11 in a direction orthogonal to the left-right direction X. In the illustrated example, the 1 st groove portion 2s is formed smaller in size in the vertical direction Z than the 2 nd groove portion 2 t. An upper surface located upward and downward among inner surfaces that partition the 2 nd guide portion 2f is the same in position in the up-down direction Z in the entire region except for the end portion 2j on the other side in the left-right direction X.
Among the inner surfaces defining the 2 nd guide portion 2f, the lower surface of the 2 nd groove portion 2t located below and facing upward projects downward from the lower surface of the 1 st groove portion 2 s. The upper surface and the lower surface of the 2 nd groove portion 2t are defined as a 2 nd engaging surface 2h which is in contact with the 1 st engaging surface 42a of the metal fitting 40. The 1 st engaging surface 42a may be a portion of the upper surface and the lower surface of the 2 nd groove portion 2t except for the end portions 2j, 2k on the other side in the left-right direction X.
The end 2j on the other side in the left-right direction X of the upper surface of the 2 nd groove portion 2t gradually extends upward as it goes to the other side in the left-right direction X. The end 2k on the other side in the left-right direction X of the lower surface of the 2 nd groove portion 2t gradually extends downward as it goes toward the other side in the left-right direction X. Thus, the size of the 2 nd guide portion 2f in the vertical direction Z, that is, the groove width is largest at the other end portion of the 2 nd groove portion 2t in the horizontal direction X.
A connecting groove 2g that is curved to protrude toward one side in the lateral direction X and extends in the front-rear direction Y is formed in the inner surface of the other side in the lateral direction X in the surface of the covering portion 2 e. Both ends of the linking groove 2g in the front-rear direction Y are connected to the ends of the pair of 1 st groove parts 2s on one side in the left-right direction X. The connecting grooves 2g and the 1 st groove portions 2s are formed so as to have the same positions in the vertical direction Z and the same groove widths. The width of the connecting groove 2g is equal to the size of the flange 11a of the 1 st mounting member 11 in the vertical direction Z, and the flange 11a is fitted in the connecting groove 2 g.
In the present embodiment, as shown in fig. 4, a 1 st guide portion 30 in a projecting shape extending in the left-right direction X is formed on the outer peripheral surface of the 1 st mounting member 11. The 1 st guide portion 30 protrudes outward in the front-rear direction Y from the outer peripheral surface of the 1 st mounting member 11 in a plan view, and extends in a tangential direction that is tangent to the outer peripheral surface of the 1 st mounting member 11. The 1 st guide portion 30 is formed such that two 1 st guide portions 30 are formed on the outer peripheral surface of the 1 st mounting member 11 and are respectively arranged on both sides across the center axis O1 in the radial direction. The 1 st guide portion 30 is fitted in the 2 nd guide portion 2f of the fitting hole 2 a.
The 1 st guide portion 30 includes a 1 st guide portion 31 located on one side in the left-right direction X and a 2 nd guide portion 32 located on the other side in the left-right direction X. The upper surfaces of the 1 st guide portion 31 and the 2 nd guide portion 32 are flush with the upper surface of the flange portion 11a of the 1 st mounting member 11. The size of the 1 st guide portion 31 in the vertical direction Z is equal to the size of the flange portion 11a of the 1 st mounting member 11 in the vertical direction Z. The 1 st guide portion 31 is formed in a rectangular shape extending in the left-right direction X. A recessed notch 31a is formed at one end of the 1 st guide 31 in the lateral direction X to expose a part of a metal fitting 40 described later. The depressed notch 31a is integrally opened in 3 directions of upper, lower, and outer sides in the front-rear direction Y.
The 2 nd guide portion 32 has a rectangular shape that is long in the vertical direction Z and short in the left-right direction X when viewed from the front-rear direction Y. A 1 st recessed portion 32a extending over the entire length in the left-right direction X is formed on a surface facing the front-rear direction Y of the 2 nd guide portion 32. The 1 st recessed portion 32a has a rectangular shape when viewed from the front-rear direction Y. The size of the 1 st recessed portion 32a in the vertical direction Z is larger than the size of the 1 st recessed portion 32a in the vertical direction Z and the size of the 1 st guide portion 31 in the vertical direction Z of each of the portion located above the 1 st recessed portion 32a and the portion located below the 1 st recessed portion 32a in the 2 nd guide portion 32. Further, a 2 nd recessed portion 32b recessed toward one side in the left-right direction X is formed on the other end surface in the left-right direction X of the 2 nd guide portion 32. A part of the inner surface of the 2 nd concave portion 32b is the outer peripheral surface of the 1 st mounting member 11, and a part of the outer peripheral surface of the 1 st mounting member 11 located inside the 2 nd concave portion 32b is connected to a part located outside the 2 nd concave portion 32b without a level difference.
As shown in fig. 5, a metal fitting 40 is disposed on the 1 st guide portion 30, and the metal fitting 40 has a 1 st engagement surface 42a that abuts the 2 nd guide portion 2 f. In the illustrated example, the metal fittings 40 are buried in the 1 st guide portion 30. The metal fitting 40 includes an insertion portion 41 formed in a shape along the outer shape of the 1 st guide portion 30 and positioned on one side in the left-right direction X, and an engagement portion 42 positioned on the other side in the left-right direction X. The size of the engaging portion 42 in the vertical direction Z is larger than the size of the insertion portion 41 in the vertical direction Z. The 1 st mounting member 11 and the metal fitting 40 are integrally formed by insert molding. The metal fitting 40 may be disposed in the 1 st guide portion 30 by bonding.
The insertion portion 41 is formed in a rectangular shape extending in the left-right direction X. The size of the insertion portion 41 in the vertical direction Z is equal over the entire region in the horizontal direction X. One end of the insertion portion 41 in the left-right direction X is exposed to the outside through the recessed notch portion 31 a. In the recessed notch portion 31a, a portion of one end portion of the insertion portion 41 in the left-right direction X, which is apart from one end edge to the other end in the left-right direction X, is exposed to the outside. The upper surface of the insertion portion 41 is located below the upper surface of the engagement portion 42.
As shown in fig. 5, the engaging portion 42 has a rectangular shape that is long in the vertical direction Z and short in the horizontal direction X when viewed from the front-rear direction Y. The engaging portion 42 is buried in the 1 st guide portion 30 in a state where the upper end portion, the lower end portion, and the other end portion in the left-right direction X are exposed to the outside from the 1 st guide portion 30. The upper surface and the lower surface of the engaging portion 42 are defined as a 1 st engaging surface 42a that abuts against a 2 nd engaging surface 2h of the 2 nd guide portion 2f of the bracket 2. In the illustrated example, the 1 st engaging surface 42a protrudes upward and downward from the 1 st guide portion 30, respectively, and is directed vertically. The other end surface of the engaging portion 42 in the left-right direction X is a pressing surface 42b that is pressed when the 1 st mounting member 11 is assembled to the bracket 2.
The engaging portion 42 has upper and lower end portions on one side in the left-right direction X and chamfered in a curved shape. Two through holes 42c penetrating in the front-rear direction Y are formed in the engagement portion 42 with an interval in the vertical direction Z. The metal fitting 40 is formed of, for example, an aluminum alloy or the like. The longitudinal elastic coefficient of the material forming the metal fitting 40 is smaller than that of the material forming the bracket 2.
Next, a method of assembling the vibration damping device body 10 in the bracket 2 will be described.
The vibration damping device body 10 and the bracket 2 are relatively moved closer in the left-right direction X, and one end portion of the 1 st guide portion 31 of the 1 st guide portion 30 in the left-right direction X enters the 2 nd guide portion 2f from the other end portion of the 2 nd groove portion 2t in the left-right direction X. Then, one end portion in the left-right direction X of the 1 st engaging surface 42a of the metal fitting 40 is brought into contact with the other end portion in the left-right direction X of the 2 nd engaging surface 2h of the 2 nd guide portion 2 f.
Then, the pressing surface 42b of the metal fitting 40 is pressed toward one side in the left-right direction X. Thus, the 1 st engaging surface 42a of the metal fitting 40 and the 2 nd engaging surface 2h of the 2 nd guide portion 2f slide against each other, and the vibration damping device body 10 is inserted into the fitting hole 2a toward one side in the left-right direction X. This completes the assembly of the vibration isolator main body 10 to the bracket 2. At this time, the flange portion 11a of the 1 st mounting member 11 enters the communicating groove 2g of the covering portion 2e of the bracket 2.
Here, in the process of inserting the vibration damping device body 10 into the fitting hole 2a toward one side in the left-right direction X, the pressing surface 42b of the 1 st mounting member 11, which is formed of a metal material instead of a synthetic resin material, is pressed toward one side in the left-right direction X with respect to the bracket 2. Therefore, even when the interference between the 1 st engagement surface 42a of the metal fitting 40 and the 2 nd engagement surface 2h of the 2 nd guide portion 2f is increased, the 1 st mounting member 11 can be prevented from being largely deformed.
As described above, with the vibration damping device body 10 according to the present embodiment, the 1 st mounting member 11 is formed of a synthetic resin material. This makes it possible to reduce the weight of the vibration isolator 1 compared to the case where the entire first mounting member 11 is made of a metal material. Further, the metal fitting 40 disposed in the 1 st guide portion 30 of the 1 st mounting member 11 has the 1 st engaging surface 42a abutting against the inner surface of the 2 nd guide portion 2f, and the hardness of the 1 st engaging surface 42a is higher than the hardness of the 1 st mounting member 11 formed of a synthetic resin material. Thus, the 1 st engagement surface 42a is not easily deformed, and therefore the 1 st engagement surface 42a can be strongly pressed against the 2 nd guide portion 2f of the fitting hole 2 a. Therefore, the engagement between the 1 st guide portion 30 and the 2 nd guide portion 2f can be made firm, and the 1 st engagement surface 42a is formed of a metal material, so that it is possible to suppress a situation in which the fitting strength of the 1 st mounting member 11 into the fitting hole 2a is reduced with time. This can suppress the displacement of the 1 st mounting member 11 with respect to the fitting hole 2a of the bracket 2.
Further, since the 1 st engaging surface 42a is a surface facing the vertical direction Z, a particularly large load such as the weight of the vibration generating portion is easily applied, and the 1 st mounting member 11 can be effectively prevented from being deformed by an external force in the vertical direction. This effectively suppresses the situation in which the 1 st mounting member 11 is likely to be displaced from the fitting hole 2a of the bracket 2 due to the formation of the 1 st mounting member 11 with the synthetic resin material.
The 1 st engagement surface 42a is disposed on the 2 nd guide portion 32 of the 1 st guide portion 30, which has a large size in the vertical direction Z. Thus, even if the 1 st guide portion 31 of the 1 st guide portion 30, which has a small size in the vertical direction Z, is loosely fitted into the 2 nd guide portion 2f, the fitting strength with which the 1 st mounting member 11 is fitted into the fitting hole 2a can be easily ensured. In this case, in the process of fitting the 1 st mounting member 11 into the fitting hole 2a, the 1 st guide portion 30 is fitted into the 2 nd guide portion 2f from the one side portion thereof in the initial stage, and the other side portion of the 1 st guide portion 30 is fitted into the 2 nd guide portion 2f in the final stage. Thus, it is not necessary to apply a large force to the 1 st mounting member 11 and the bracket 2 in the initial stage, and it is sufficient to apply a large force only in the final stage. Further, since the 1 st guide part 31 in the 1 st guide part 30 has entered into the 2 nd guide part 2f at the final stage, the 2 nd guide part 32 is not misaligned with respect to the 2 nd guide part 2 f. By the above-described operation, the fitting hole 2a can be easily fitted to the 1 st mounting member 11.
In addition, in the vibration isolator 1 according to the present embodiment, at least a part of the surface of the 2 nd guide portion 2f is formed of a metal material and abuts against the 2 nd engaging surface 2h of the 1 st engaging surface 42 a. Therefore, by bringing the 1 st engaging surface 42a and the 2 nd engaging surface 2h into contact with each other, the engagement between the 1 st guide portion 30 and the 2 nd guide portion 2f is reliably secured, and a situation in which the fitting strength of the 1 st mounting member 11 into the fitting hole 2a decreases with time can be reliably suppressed.
Further, the longitudinal elastic coefficient of the metal material forming the metal fitting 40 is smaller than the longitudinal elastic coefficient of the metal material forming the 2 nd engaging surface 2 h. Therefore, when the 1 st guide portion 30 and the 2 nd guide portion 2f are fitted to each other, the 1 st engaging surface 42a is deformed, so that even if the 1 st engaging surface 42a and the 2 nd engaging surface 2h are strongly brought into contact with each other, it is possible to suppress a situation in which an excessive load is applied to the 2 nd engaging surface 2 h.
Further, a 1 st recess 32a is formed in the 2 nd guide portion 32 of the 1 st guide portion 30, which is tightly fitted to the 2 nd guide portion 2f in the front-rear direction Y. This can increase the surface pressure between the surface of the 2 nd guide part 32 facing the front-rear direction Y and the inner surface of the 2 nd guide part 2f, and can suppress the occurrence of a local gap therebetween. This prevents the second guide 32 from being deformed by vibration input to the vibration isolator 1, thereby preventing abnormal noise caused by local gap leveling.
The scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. For example, in the above embodiment, the 1 st guide portion 30 having a convex shape is formed in the 1 st mounting member 11, and the 2 nd guide portion 2f having a concave shape is formed in the fitting hole 2a of the bracket 2. The 1 st guide portion of the 1 st mounting member may be formed in a concave shape, and the 2 nd guide portion of the bracket may be formed in a convex shape. In this case, the 1 st engagement surface of the metal fitting abuts against the outer surface of the 2 nd guide portion.
In the above embodiment, the configuration in which the 1 st engagement surface 42a of the metal fitting 40 faces in the vertical direction Z is shown, but the present invention is not limited to this configuration. The 1 st engaging surface may face in a direction other than the vertical direction Z. In the above embodiment, the size in the vertical direction Z of the 1 st guide part 31 located on one side in the horizontal direction X of the 1 st guide part 30 is smaller than the size in the vertical direction Z of the 2 nd guide part 32 located on the other side. The size of the 1 st guide portion in the vertical direction Z may be equal to or larger than the size of the 2 nd guide portion in the vertical direction Z.
In the above embodiment, the longitudinal elastic coefficient of the metal material forming the metal fitting 40 is smaller than the longitudinal elastic coefficient of the metal material forming the 2 nd engaging surface 2h of the 2 nd guide portion 2f of the bracket 2, but the present invention is not limited to this configuration. The longitudinal elastic coefficient of the metal material forming the 1 st engaging surface of the 1 st mounting member may be equal to or greater than the longitudinal elastic coefficient of the metal material forming the 2 nd engaging surface of the bracket.
In the above embodiment, the bracket 2 is molded by casting, and the 1 st mounting member 11 is molded by insert molding using a synthetic resin material. The bracket and the 1 st mounting member may be formed by other forming methods using other materials. In the above embodiment, the configuration in which the central axis O1 of the 1 st mounting member 11 and the central axis O3 of the fitting hole 2a are orthogonal to each other is shown, but the present invention is not limited to this configuration. The 1 st mounting member may be fitted into the fitting hole so as to be coaxial with the central axis of the fitting hole.
Note that the constituent elements of the above-described embodiment may be replaced with well-known constituent elements as appropriate within a range not departing from the gist of the present invention, and the above-described embodiment and the modification may be combined as appropriate.
Industrial applicability
According to the present invention, the 1 st mounting member can be prevented from being displaced from the bracket, and the weight can be reduced.
Description of the reference numerals
1. A vibration-proof device; 2. a bracket; 2a, a fitting hole; 2f, 2 nd guide part; 2h, the 2 nd clamping surface; 10. A vibration damping device body; 11. 1 st mounting member; 12. a 2 nd mounting member; 13. an elastomer; 30. 1 st guide part; 42a, 1 st engaging surface; o1, center axis of the 1 st mounting member; o2, center axis of the 2 nd mounting member; o3, center axis of fitting hole.
Claims (4)
1. A vibration isolator comprises a vibration isolator main body and a bracket,
the vibration damping device main body includes:
a 1 st mounting member mounted to one of the vibration generating portion and the vibration receiving portion via the bracket;
a 2 nd mounting member mounted to the other of the vibration generating portion and the vibration receiving portion; and
an elastic body that connects the 1 st mounting member and the 2 nd mounting member,
the 1 st mounting member is fitted into a fitting hole formed in the bracket,
a 1 st guide portion extending in a 1 st axial direction along a center axis of the fitting hole and having one of a convex shape and a concave shape is formed on an outer peripheral surface of the 1 st mounting member,
a 2 nd guide portion extending in the 1 st axial direction and having the other of the concave shape and the convex shape is formed on an inner peripheral surface of the fitting hole,
the 1 st guide portion is fitted into the 2 nd guide portion,
the 1 st mounting member is formed of a synthetic resin material, a metal fitting having a 1 st engaging surface abutting the 2 nd guide portion is disposed on the 1 st guide portion,
at least a part of the surface of the 2 nd guide is formed of a metal material and is set as a 2 nd engaging surface that abuts the 1 st engaging surface,
the metal material forming the metal fitting has a smaller longitudinal elastic coefficient than the metal material forming the 2 nd engaging surface.
2. The vibration isolator according to claim 1,
the 1 st engaging surface faces in the vertical direction.
3. The vibration isolator according to claim 1,
a portion of the 1 st guide portion on one side in the 1 st axial direction has a smaller size in a direction along an outer peripheral surface of the 1 st mounting member in a direction orthogonal to the 1 st axial direction than a portion on the other side in the 1 st axial direction,
the 1 st engagement surface is disposed on the other side of the 1 st guide portion.
4. The vibration isolator according to claim 2,
a portion of the 1 st guide portion on one side in the 1 st axial direction has a smaller size in a direction along an outer peripheral surface of the 1 st mounting member in a direction orthogonal to the 1 st axial direction than a portion on the other side in the 1 st axial direction,
the 1 st engagement surface is disposed on the other side of the 1 st guide portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-175723 | 2016-09-08 | ||
| JP2016175723A JP6779720B2 (en) | 2016-09-08 | 2016-09-08 | Anti-vibration device |
| PCT/JP2017/022262 WO2018047431A1 (en) | 2016-09-08 | 2017-06-16 | Vibration-damping device body and vibration-damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109690126A CN109690126A (en) | 2019-04-26 |
| CN109690126B true CN109690126B (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780054802.2A Active CN109690126B (en) | 2016-09-08 | 2017-06-16 | Vibration-proof device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11654764B2 (en) |
| EP (1) | EP3511592B1 (en) |
| JP (1) | JP6779720B2 (en) |
| CN (1) | CN109690126B (en) |
| WO (1) | WO2018047431A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7000243B2 (en) * | 2018-04-26 | 2022-01-19 | 山下ゴム株式会社 | Anti-vibration device |
| CN114245851B (en) * | 2019-06-11 | 2023-07-07 | 山下橡胶株式会社 | Vibration isolator and bracket |
| JP7329429B2 (en) * | 2019-12-05 | 2023-08-18 | 住友理工株式会社 | Cylindrical anti-vibration device with bracket |
| CN112049888B (en) * | 2020-08-27 | 2022-07-12 | 广州汽车集团股份有限公司 | Car hydraulic pressure suspension structure and car |
| CN114623192A (en) * | 2021-12-02 | 2022-06-14 | 浙江零跑科技股份有限公司 | Hydraulic suspension device for automobile |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3905868A1 (en) | 1989-02-24 | 1990-08-30 | Metzeler Gmbh | CHASSIS BEARING |
| JP4060309B2 (en) | 2004-11-04 | 2008-03-12 | 本田技研工業株式会社 | Vibration isolator for vehicle |
| US8282086B2 (en) | 2005-09-07 | 2012-10-09 | Bridgestone Corporation | Vibration isolator |
| FR2896842B1 (en) * | 2006-02-01 | 2010-04-09 | Hutchinson | HYDRAULIC ANTIVIBRATORY SUPPORT AND METHOD FOR MANUFACTURING THE SAME |
| JP5175531B2 (en) | 2007-12-05 | 2013-04-03 | 株式会社ブリヂストン | Vibration isolator |
| DE102010004381A1 (en) * | 2010-01-12 | 2011-07-14 | Anvis Deutschland GmbH, 36396 | Hydro-elastic functional part for a bearing, hydro-elastic bearing and method for mounting the hydro-elastic bearing |
| JP2011214634A (en) | 2010-03-31 | 2011-10-27 | Bridgestone Corp | Vibration control device |
| GB2480695B (en) | 2010-05-28 | 2012-04-25 | Dtr Vms Ltd | Hydraulically damped mounting device |
| JP2013117258A (en) | 2011-12-02 | 2013-06-13 | Bridgestone Corp | Vibration damping device |
| CN104769311B (en) * | 2013-09-10 | 2016-08-24 | 住友理工株式会社 | Fluid-sealed vibration-damping device |
| WO2016052062A1 (en) | 2014-10-03 | 2016-04-07 | 株式会社ブリヂストン | Anti-vibration device |
| JP5941966B2 (en) * | 2014-12-08 | 2016-06-29 | 住友理工株式会社 | Fluid filled vibration isolator |
| US9931923B2 (en) * | 2016-05-31 | 2018-04-03 | Sumitomo Riko Company Limited | Bracket-equipped vibration-damping device |
| JP6807257B2 (en) * | 2017-03-16 | 2021-01-06 | 住友理工株式会社 | Anti-vibration device |
-
2016
- 2016-09-08 JP JP2016175723A patent/JP6779720B2/en active Active
-
2017
- 2017-06-16 EP EP17848376.4A patent/EP3511592B1/en active Active
- 2017-06-16 US US16/330,569 patent/US11654764B2/en active Active
- 2017-06-16 WO PCT/JP2017/022262 patent/WO2018047431A1/en unknown
- 2017-06-16 CN CN201780054802.2A patent/CN109690126B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109690126A (en) | 2019-04-26 |
| US20210283966A1 (en) | 2021-09-16 |
| EP3511592A4 (en) | 2019-10-16 |
| JP2018040451A (en) | 2018-03-15 |
| JP6779720B2 (en) | 2020-11-04 |
| EP3511592A1 (en) | 2019-07-17 |
| WO2018047431A1 (en) | 2018-03-15 |
| US11654764B2 (en) | 2023-05-23 |
| EP3511592B1 (en) | 2021-07-28 |
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